K. Dutta

activity

20132019

e^{+} e^{-} \to π^{+} π^{-} J / ψ

and Observation of a Charged Charmonium-like State at Belle

739 citations · 2.2k across the 32 of their papers we have counts for

collaborators

Showing 2014 · hep-exShow all

9 papers · 2 filters

hep-ex2014★ 32 cited

Search for $B_{s}^{0} \to γ γ$ and a measurement of the branching fraction for $B_{s}^{0} \to ϕ γ$

Belle Collaboration, D. Dutta, B. Bhuyan +148

We search for the decay $B_{s}^{0} \to γ γ$ and measure the branching fraction for $B_{s}^{0} \to ϕ γ$ using 121.4~ $fb^{- 1}$ of data collected at the $Υ(\mathrm{…

hep-ex2014★ 141 cited

Measurement of $e^{+} e^{-} \to π^{+} π^{-} ψ (2 S)$ via Initial State Radiation at Belle

X. L. Wang, C. Z. Yuan, C. P. Shen +151

We report measurement of the cross section of $e^{+} e^{-} \to π^{+} π^{-} ψ (2 S)$ between 4.0 and $5.5 GeV$ , based on an analysis of initial state radiation events in a $980 f b^{- 1}$ …

hep-ex2014

Measurement of the branching fraction of $B^{+} \to τ^{+} ν_{τ}$ decays with the semileptonic tagging method and the full Belle data sample

Belle Collaboration, A. Abdesselam, I. Adachi +392

We report a measurement of the branching fraction of $B^{+} \to τ^{+} ν_{τ}$ decays using a data sample of $772 \times 1 0^{6} B B ˉ$ pairs, collected at the $Υ (4 S)$ resonance with the…

hep-ex2014★ 9 cited

Evidence of $Υ (1 S) \to J / ψ + χ_{c 1}$ and search for double-charmonium production in $Υ (1 S)$ and $Υ (2 S)$ decays

Belle Collaboration, S. D. Yang, C. P. Shen +155

Using data samples of $102 \times 1 0^{6}$ $Υ (1 S)$ and $158 \times 1 0^{6}$ $Υ (2 S)$ events collected with the Belle detector, a first experimental search has been made for double-charmonium…

hep-ex2014★ 191 cited

Observation of a new charged charmoniumlike state in B -> J/psi K pi decays

Belle Collaboration, K. Chilikin, R. Mizuk +162

We present the results of an amplitude analysis of anti-B0 -> J/psi K- pi+ decays. A new charged charmoniumlike state Zc(4200)+ decaying to J/psi pi+ is observed with a significanc…

hep-ex2014★ 10 cited

Search for $B^{+} \to e^{+} ν$ and $B^{+} \to μ^{+} ν$ decays using hadronic tagging

Belle Collaboration, Y. Yook, Y. -J. Kwon +175

We present a search for the rare leptonic decays $B^{+} \to e^{+} ν_{e}$ and $B^{+} \to μ^{+} ν_{μ}$ , using the full $Υ (4 S)$ data sample of $772 \times 1 0^{6}$ $B B ˉ$ pairs collected with the…

hep-ex2014★ 25 cited

Search for CP violation in D^0 -> pi^0 pi^0 decays

N. K. Nisar, K. Trabelsi, G. B. Mohanty +161

We search for CP violation in neutral charm meson decays using a data sample with an integrated luminosity of 966 fb^-1 collected with the Belle detector at the KEKB e+e- asymmetri…

hep-ex2014★ 16 cited

Measurement of the Lepton Forward-Backward Asymmetry in $B \to X_{s} ℓ^{+} ℓ^{-}$ Decays with a Sum of Exclusive Modes

Y. Sato, A. Ishikawa, H. Yamamoto +173

We report the first measurement of the lepton forward-backward asymmetry $A_{FB}$ as a function of the squared four-momentum of the dilepton system, $q^{2}$ , for the elect…

hep-ex2014★ 30 cited

Observation of $D^{0} - D ˉ^{0}$ Mixing in $e^{+} e^{-}$ Collisions

B. R. Ko, E. Won, I. Adachi +164

We observe $D^{0} - D ˉ^{0}$ mixing in the decay $D^{0} \to K^{+} π^{-}$ using a data sample of integrated luminosity 976 fb $^{- 1}$ collected with the Belle detector at the KEKB $e^+…

Search for Bs0​→γγ and a measurement of the branching fraction for Bs0​→ϕγ

Measurement of e+e−→π+π−ψ(2S) via Initial State Radiation at Belle

Measurement of the branching fraction of B+→τ+ντ​ decays with the semileptonic tagging method and the full Belle data sample

Evidence of Υ(1S)→J/ψ+χc1​ and search for double-charmonium production in Υ(1S) and Υ(2S) decays